Roof popping noise

I've noticed that every time I take my 2014 model through the car wash, the roof snaps, pops, dents in and comes back and generally doesn't like what it's being subjected too. It happens at the end of the wash, where there are 4 turbo blowers that blow off the water. They are crazy powerful and actually flex/ press down the roof, then it pops right back.
Anybody else seeing this?

I've noticed that every time I take my 2014 model through the car wash, the roof snaps, pops, dents in and comes back and generally doesn't like what it's being subjected too. It happens at the end of the wash, where there are 4 turbo blowers that blow off the water. They are crazy powerful and actually flex/ press down the roof, then it pops right back.
Anybody else seeing this?